Aristida divaricata

Life-forms

Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Monocots
Cladus: Commelinids
Ordo: Poales

Familia: Poaceae
Subfamilia: Aristidoideae
Tribus: Aristideae
Genus: Aristida
Species: Aristida divaricata
Name

Aristida divaricata Humb. & Bonpl. ex Willd., Enum. Pl.: 99 (1809).
Synonyms

Homotypic
Chaetaria divaricata (Humb. & Bonpl. ex Willd.) P.Beauv., Ess. Agrostogr.: 30 (1812).
Aristida jacquiniana Tausch, Flora 19: 508 (1836), nom. superfl.
Aristida humboldtiana Trin. & Rupr., Sp. Gram. Stipac.: 118 (1842), nom. superfl.
Heterotypic
Andropogon divaricatus Humb. & Bonpl. ex Willd., Enum. Pl.: 99 (1809), pro syn.
Aristida jacquiniana var. durandii Trin. & Rupr., Sp. Gram. Stipac.: 120 (1842).
Aristida palmeri Vasey, Bull. Torrey Bot. Club 10: 42 (1883).
Aristida lemmonii Scribn., Trans. New York Acad. Sci. 14(2): 23 (1894).

Homonyms

Aristida divaricata Lag., nom. illeg. = Aristida laxa Cav.

Distribution
Native distribution areas:

Continental: Northern America
Regional: Southwestern USA
Arizona; California; Colorado; Kansas; Oklahoma; Texas
Regional: Mexico
Mexico Central; Mexico Gulf; Mexico Northeast; Mexico Northwest; Mexico Southwest; New Mexico;
Continental: Southern America
Regional: Central America
Guatemala; Honduras

References: Brummitt, R.K. 2001. TDWG – World Geographical Scheme for Recording Plant Distributions, 2nd Edition
References
Primary references

Willdenow, C.L. 1809. Enumeratio plantarum horti regii botanici berolinensis, continens descriptiones omnium vegetabilium in horto dicto cultorum. VI + 1099 pp. In taberna Libraria Scholae realis, Berolini [Berlin]. BHL Biblioteca Digital Reference page. : 99

Additional references

Humboldt, F.W.H.A.v. & Bonpland, A.J.A., 1809. Enum. Pl.: 99

Links

Govaerts, R. et al. 2019. Aristida divaricata in Kew Science Plants of the World Online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2019 Dec 16. Reference page.
International Plant Names Index. 2019. Aristida divaricata. Published online. Accessed: Dec 16 2019. Reference page.
Tropicos.org 2019. Aristida divaricata. Missouri Botanical Garden. Published online. Accessed: 16 Dec 2019.

Vernacular names
English: poverty threeawn

Aristida divaricata is a species of grass known by the common name poverty threeawn. It is native to the Americas from the central United States to Guatemala. It is a perennial grass forming clumps of unbranched stems up to 70 centimeters tall. Leaves are mostly basal and roll along the edges. The sparse inflorescence is a wide, flat, open array of spikelets that break apart easily. The grain has a twisted tip and three awns up to 2 centimeters long.
External links

Jepson Manual Treatment
Grass Manual Treatment
Vascular Plants of the Gila Wilderness